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European application, no grantEurope

Composite membrane and support assembly

EP 0821998 A2 · Applicant: LEYBOLD INFICON INC.

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Overview

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed July 25, 1997 and never granted as a European patent. Had it been granted, its 20-year term would have ended July 25, 2017.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by January 25, 2023.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledJuly 25, 1997
PublishedFebruary 4, 1998
GrantedNever granted
Term endedJuly 25, 2017
Application numberEP 97420129
Classification (CPC)B01D69/108 +2 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedJuly 25, 1997PublishedFeb 4, 1998Term endedJuly 25, 2017

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.